[wups]

There are more efficient ways to do it(for the alttabing). Btw it shouldn't be called alt-tabbing, because it returns true even if you pressed the pause key(ESC).

pawn Код:

new PlayerTick[MAX_PLAYERS];
#define IsPlayerAfk(%0) (PlayerTick[%0]+1000 < GetTickCount())
public OnPlayerUpdate(playerid)
{
    PlayerTick[playerid]=GetTickCount();
}